What are the key challenges facing aerospace tech for a manned Mars mission?

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Key challenges facing aerospace technology for a manned Mars mission include the need for advanced life support systems to sustain astronauts during long-duration flights, the development of reliable propulsion systems for efficient travel, and the creation of habitats that can protect against radiation and harsh Martian conditions. Additionally, ensuring effective communication over vast distances poses significant technical hurdles. The psychological and physical health of astronauts during extended missions is also a critical concern. Addressing these challenges is essential for the feasibility of a successful manned mission to Mars. Continued research and innovation are necessary to overcome these obstacles.
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What are the hindrances to the current aerospace technologies for a manned Mars mission?
 
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